/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.gluten.metrics;

import org.apache.spark.sql.connector.metric.CustomTaskMetric;

import java.util.ArrayList;

public class BatchWriteMetrics {
  private final long numWrittenBytes;
  private final int numWrittenFiles;
  private final long writeIOTimeNs;
  private final long writeWallNs;

  public BatchWriteMetrics(
      long numWrittenBytes, int numWrittenFiles, long writeIOTimeNs, long writeWallNs) {
    this.numWrittenBytes = numWrittenBytes;
    this.numWrittenFiles = numWrittenFiles;
    this.writeIOTimeNs = writeIOTimeNs;
    this.writeWallNs = writeWallNs;
  }

  public CustomTaskMetric[] toCustomTaskMetrics() {
    ArrayList<CustomTaskMetric> customTaskMetrics = new ArrayList<>();
    customTaskMetrics.add(customTaskMetric("numWrittenBytes", numWrittenBytes));
    customTaskMetrics.add(customTaskMetric("numWrittenFiles", numWrittenFiles));
    customTaskMetrics.add(customTaskMetric("writeIOTimeNs", writeIOTimeNs));
    customTaskMetrics.add(customTaskMetric("writeWallNs", writeWallNs));
    return customTaskMetrics.toArray(new CustomTaskMetric[0]);
  }

  private CustomTaskMetric customTaskMetric(String name, long value) {
    return new CustomTaskMetric() {
      @Override
      public String name() {
        return name;
      }

      @Override
      public long value() {
        return value;
      }
    };
  }
}
